Oven.



G. S. WELCH.

OVEN. APPLICATION FILED PEB. 2, 1914.

` 1,124,085, Patented .1511.5, 191.5.

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u srarus ATENT OFFICE.

GEORGE S. WELCH. yOF CHICAGO, ILLINOIS.

ovEN.

Specification of Letters Patent.

Patented J an. 5, 1915.

Application :filed February 2, 1914. Serial-No. 815,997.

its object the provision of an improved ovenv structure which with greatfacility may be used for cooking purposes by means of. heat confinedwithin the oven structure after such heat has been originally suppliedto the oven and the further supply of heat discontinued.

In a preferred form of my invention, generally speaking, I have an ovenstructure to which heat is supplied through the agency of a suitable gasburner. whereafter the oven having been sufiiciently heated, the burneris discontinued and the openings in the oven closed, whereby the` heatcontained within the oven will then continue the cooking operation, thuseffecting a great saving in gas.

The improved oven of my invention has,

.of course, suitable heat insulating walls so as to retain the heattherein.

My invention concerns itself with im-l invention; and Fig. 2 is asectional view on p line (1f-a of Fig. 1, portions being broken awaymore clearly to reveal features of construction. l

My improved oven structure has the two lsidewalls -1 and 2, the top wall3, bottom wall 4 and end lwall 5, all constructed of two layers of sheetiron 6 and 7, with heat insulating material 8 between them. A heatinsulating door 9 is mounted at the front oi the oven, being adapted toswing about the hinges 10,'.and being held in place by the lock 11.,Interiorly of the oven, I provide a false bottom 12 extending clearacross the lower portion of the oven with the exception of the openspaces 13 and 111 shown more clearly in Fig. 2 which form the inlet to aconducting channel 15 leading toward the top of the oven and providedWith holes 16, 16. The heat enters between the i'alse bottom 12 andthebottom wall L and ypasses upwardly through the apertures 13 and 14 into4the channels 15, .to be from thereconducted into the interior of theoven through the apertures 1G. Heat is also sup,-

plied tothe interior of the oven by conduction through the plate 12forming the false bottom. The bottom wall 4 is perforatedl toaccommodate upwardly extending walls 17 of a channel forming part of acasing 18 secured to the said bottom wall. The walls 17 form the ducts19 through which heat is supplied to the interior of thefoven from Y edat its rear portion through the agency of the arm 26 to a lever 28pivoted at 2,9 and pivoted to a vent closure or. valve 30 adapted toclose or open the vent 31. The

forward extremity of the slide is connected by means of the 'arm 32 withanother lever 33 pivoted at 34 so that when this lever is swung aboutits pivot, the valves may either open or close the ducts 18 and 19 asmay be desired. Whenever the ducts 18 and 19 are open, the vent 31 isalso open and whenever the ducts 18 and 19 are closed the vent 31 isclosed. The lever 33 through the agency of its hand hold 35 alsooperates a bell crank lever 36 pivoted at 37, which. bell crank leverthrough the agency of thecxtension rod 38 controlsboth gas inlet valves39 and 40 leading respectively to the burners 20, 20. Whenever the ducts18 and 19 are open the supply of gas is admitted tothe burners andwhenever the ducts 18 and 19 are closed the valves 39 and 40 are alsosimultaneously closed. -It will be seen from this that the supply ofheat is efficientlyconducted to the oven from' the burners 20,

These burners `are the hoods 21 forming sulicient passageway 4 for theair to the burners.' The false bottom 12 also prevents drippings fromthe food within the oven from falling into the ductsl 18 and 19. Theheat supplied by the burn' ers is in part conducted to 'the interior ofthe oven from the plate 12 and in part is directed to the top of theoven through the From what has been described it is a thought the natureof my invention will be entirely clear and readily apparent to thoseskilled in the art.

Having however thus described one form which my invention may take, whatI claim as new and desire to secure by Letters Patent is:

1. An oven having heat insulating Walls, a pair of parallel ductsleading through the bottom Wall and extending substantially the entireWidth of said Wall, a hood under each duct, a pair of pipes forsupplying the gas arranged Within and running longitudinally of saidducts, a pair of sliding closures for said ducts fastening together,valves to govern the supply of gas to said pipes, and means to move saidclosures and to control said valves.

2. An oven having heat insulating walls, a pair of parallel ductsleading through the bottom Wall and extending substantially the entireWidth of said Wall, a hood` under each duct, a pair of pipes forsupplying the gas arranged Within and running longitudinally of saidducts, a pair of sliding closures for said ducts fastened together,valves to govern the supply of gas to said pipes, a vent in the toportion of the rear Wall of said oven, an means to move said closures andto control said valves and 'the closure of -said vent. V

3.- An oven having heat insulating Walls, a pair of parallel ductsleading through the bottom Wall and extending substantially the entirewidth of said wall, a hood under each duct, a pair of pipes forsupplying the gas arranged within and. running longitudinally of saidducts, a pair of sliding closures for said ducts fastened together,valves to govern the supply of gas to said pipes, a vent in the topportion of the rear Wall of said oven, a heat conducting false bottomwithin said oven, and means to move said closures and to control saidvalves and the closure of said vent.

4. An oven having heat insulating Walls, a pair of parallel ductsleading through the bottom Wall and extending substantially the entireWidth of said Wall, a hood under each duct, a pair of pipes forsupplying the gas arranged Within and running longitudinally of saidducts, a pair of sliding closures forsaid ducts fastened together,valves to govern the supply of gas to said pipes, a vent in the topportion of the rear wall of said oven, a heat vconducting false bottomWithin said oven, ducts leading from the space below` said false bottomtoward the upper portion of said oven, having openings in theupper-portion thereof communicating with the interiorof the oven, andmeans t0 move said closures and to control said valves and the closureof said vent.

.5. An oven having heat insulating Walls, a pairof parallel ductsleading throughthe bottom wall and extending substantially the in thetop portion of the rear Wall of said oven, a lheat conducting falsebottom Within said oven, ductsleading from the space below' saidfalselbottom toward the upper portion of said oven, having opening inthe the upper .portion 'thereof' communicating with the interior of theoven, said ducts being arranged along the side Walls of said oven andextending throughout substantially the entire length of said Walls.

vIn Witness whereof, I hereunto subscribe my name this 17th day ofJanuary, A. D.,r

GEORGE s.l WELCH. Witnesses A. L. Jonas, HAZEL ANN JONES.

